One vertex per element, one color per generator, with an edge from x to x·s.
(9,10)(11,13)(12,16)(14,15)(17,18)(19,20)(21,22)(23,24) involution — undirected(1,2)(3,8)(4,5)(6,7)(10,15)(11,16)(18,22)(19,23) involution — undirected(2,7)(3,4)(9,11,14,16)(10,12,15,13)(17,19,21,23)(18,20,22,24)(1,3,6,4)(2,8,7,5)(9,12,14,13)(10,11,15,16)(17,20)(18,23)(19,22)(21,24)(1,4,6,3)(2,5,7,8)(9,10)(11,12)(13,16)(14,15)(1,5)(2,3)(4,7)(6,8)(9,13,14,12)(10,16,15,11)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.